In the world, but not of the world (DA Carson)
“The unease we feel at such tension will not be resolved until the last day. We await the return of Jesus Christ, the arrival of the new heaven and the new earth, the dawning of the resurrection, the glory of perfection, the beauty of holiness. Until that day, we are a people in tension. On the one hand, we belong to the broader culture in which we find ourselves; on the other, we belong to the culture of the consummated kingdom of God, which has dawned among us. Our true city is the new Jerusalem, even while we still belong to Paris or Budapest or New York. And while we await the consummation, we gratefully and joyfully confess that the God of all is our God, and that we have been called to give him glory, acknowledge his reign, and bear witness to his salvation. By the proclamation of the gospel, we anticipate the conversion of men and women from every language and people and nation. And as redeemed human beings we “seek the peace and prosperity of the city” in which we find ourselves (Jeremiah 29:7), until the new Jerusalem comes down from heaven. It is written: “The nations will walk by its light, and the kings of the earth will bring their splendor into it” (Revelation 21:24).
Carson, D. A. (2008-04-01). Christ and Culture Revisited (Kindle Locations 1149-1152). Wm. B. Eerdmans Publishing. Kindle Edition.